private VirtualFileSystemEntry applyEvent(@NotNull VFileEvent event) { try { if (event instanceof VFileCreateEvent) { final VFileCreateEvent createEvent = (VFileCreateEvent) event; return executeCreateChild(createEvent.getParent(), createEvent.getChildName()); } else if (event instanceof VFileDeleteEvent) { final VFileDeleteEvent deleteEvent = (VFileDeleteEvent) event; executeDelete(deleteEvent.getFile()); } else if (event instanceof VFileContentChangeEvent) { final VFileContentChangeEvent contentUpdateEvent = (VFileContentChangeEvent) event; executeTouch( contentUpdateEvent.getFile(), contentUpdateEvent.isFromRefresh(), contentUpdateEvent.getModificationStamp()); } else if (event instanceof VFileCopyEvent) { final VFileCopyEvent copyEvent = (VFileCopyEvent) event; return executeCreateChild(copyEvent.getNewParent(), copyEvent.getNewChildName()); } else if (event instanceof VFileMoveEvent) { final VFileMoveEvent moveEvent = (VFileMoveEvent) event; executeMove(moveEvent.getFile(), moveEvent.getNewParent()); } else if (event instanceof VFilePropertyChangeEvent) { final VFilePropertyChangeEvent propertyChangeEvent = (VFilePropertyChangeEvent) event; if (VirtualFile.PROP_NAME.equals(propertyChangeEvent.getPropertyName())) { executeRename(propertyChangeEvent.getFile(), (String) propertyChangeEvent.getNewValue()); } else if (VirtualFile.PROP_WRITABLE.equals(propertyChangeEvent.getPropertyName())) { executeSetWritable( propertyChangeEvent.getFile(), ((Boolean) propertyChangeEvent.getNewValue()).booleanValue()); } else if (VirtualFile.PROP_HIDDEN.equals(propertyChangeEvent.getPropertyName())) { executeSetHidden( propertyChangeEvent.getFile(), ((Boolean) propertyChangeEvent.getNewValue()).booleanValue()); } else if (VirtualFile.PROP_SYMLINK_TARGET.equals(propertyChangeEvent.getPropertyName())) { executeSetTarget( propertyChangeEvent.getFile(), (String) propertyChangeEvent.getNewValue()); } } } catch (Exception e) { // Exception applying single event should not prevent other events from applying. LOG.error(e); } return null; }